Harry grimaced, but nodded. He never gave away information all that easily. Years of keeping things close to the chest had left it a habit he rarely broke. He trusted everyone in the Order, but thinking about them as a whole - it just felt like too many people knowing something, and that could always lead to someone slipping up, and finding out.
But they were right. "Yeah. We can tell them. But not far enough in advance that if anything happened, it'd have time to spread. Or argue about it with us, because they won't get it, and they'd want to help more than they can," Harry told them with a shrug.
He wished he had a clearer notion of what to do, but it was the best they could come up with. They'd gotten this far - they'd manage it. They had to.